NASA launches InSight spacecraft to Mars to dig down deep
CAPE CANAVERAL, Fla. — A robotic geologist armed with a hammer and quake monitor rocketed toward Mars on Saturday, aiming to land on the red planet and explore its mysterious insides.
In a twist, NASA launched the Mars InSight lander from California rather than Florida’s Cape Canaveral. It was the first interplanetary mission ever to depart from the West Coast, drawing pre- dawn crowds to fog- socked Vandenberg Air Force Base and rocket watchers down the California coast into Baja.
“This is a big day. We’re going back to Mars!” NASA’s new boss, Jim Bridenstine, said following liftoff. “This is an extraordinary mission with a whole host of firsts.”
The spacecraft will take more than six months to get to Mars and start its unprecedented geologic excavations, traveling 300 million miles to get there.
InSight will dig deeper into Mars than ever before — nearly 16 feet — to take the planet’s temperature. It will also attempt to make the first measurements of marsquakes, using a high- tech seismometer placed directly on the Martian surface.
“That’s the real payoff of this whole mission and that’s still lying ahead of us,” said the mission’s chief scientist, Bruce Banerdt.
If all goes well, the three- legged InSight will descend by parachute and engine firings onto a flat equatorial region of Mars — believed to be free of big, potentially dangerous rocks — on Nov. 26. Once down, it will stay put, using a mechanical arm to place the science instruments on the surface.
Banerdt said Mars is ideal for learning how the rocky planets of our solar system formed 4.5 billion years ago. Unlike our active Earth, Mars hasn’t been transformed by plate tectonics and other processes, he noted. InSight might also help explain why some planets — like ours — went on to develop life, while others did not.
Over the course of two Earth years — or one Martian year — NASA expects InSight’s three main experiments to provide a true 3- D image of the interior of Mars. Scientists know Mars has an iron core and a crust, but beyond that, the inside is “basically, completely unknown,” said Banerdt.